Fort Cassin, Lake Champlain (Ordovician of the United States)

Where: Vermont (44.2° N, 73.3° W: paleocoordinates 30.5° S, 61.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Oepikodus communis conodont zone, Emerson School Member (Fort Cassin Formation), Cassinian (482.3 - 470.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, black lime mudstone

• Deposited in subtidal shelf setting between normal and storm wave bases.

Size class: macrofossils

Reposited in the AMNH, CM, MCZ, NYSM

Primary reference: R. P. Whitfield. 1886. Notice of geological investigations along the eastern shore of Lake Champlain, conducted by Prof. H.J. Seely and Pres. Ezra Brainerd, of Middlebury College, with descriptions of the new fossils discovered. Bulletin of the American Museum of Natural History 1(8):24-35 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 102197: authorized by Pete Wagner, entered by Pete Wagner on 11.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Euomphalina - Raphistomatidae
Calaurops lituiformis n. gen. n. sp.
Calaurops lituiformis n. gen. n. sp. Whitfield 1886 snail